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Home > Search Results: ( (author:"Orr, Robert William."))

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Book (4)

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1974 (2)
1971 (1)
1964 (1)

1.	Age of the Detroit River formation in Indiana / by John B. Droste, and R. William Orr. Droste, John Brown, 1927-; Orr, Robert William, joint author. Bloomington : State of Indiana, Dept. of Natural Resources, Geological Survey, 1974. QE109 .A37 no.5 \| Map It \| Detailed record - Similar records
2.	Conodonts from Middle Devonian strata of the Michigan basin, by R. William Orr. Orr, Robert William. Bloomington, Ind., Geological Survey, 1971. QE109 .A32 no. 45 QE899 \| Map It \| Detailed record - Similar records
3.	Conodonts from the Devonian Lingle and Alto formations of Southern Illinois. Orr, Robert William. Urbana, Illinois State Geological Survey, 1964. QE105 .A45 no. 361 \| Map It \| Detailed record - Similar records
4.	Ctenoconularia delphiensis, a new species of the Conulata from the New Albany Shale (upper Devonian) at Delphi, Indiana / by David G. Maroney, an[...] Maroney, David G.; Orr, Robert William, joint author. Bloomington : State of Indiana, Dept. of Natural Resources, Geological Survey, 1974. QE109 .A37 no.7 \| Map It \| Detailed record - Similar records

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